My boyfriend was talking about a movie he saw but can’t remember what it’s called. He said he saw it when he was a kid, possibly when he was really too young for it. He’s 37 now so I’d guess it was mid 70s- mid 80s.
The movie was about a heavy breathing murderer. It takes place in a high school. At one point the murderer was going after a victim and kept stepping in gum and said he was going after the gum chewer next.